Pith Number

pith:EJZ7QF7V

pith:2015:EJZ7QF7VHAFOYSCZTZCN5OREHX

not attested not anchored not stored refs pending

Which Unbounded Protocol for Envy Free Cake Cutting is Better?

William Gasarch

arxiv:1507.08497 v2 · 2015-07-28 · math.LO · cs.GT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EJZ7QF7VHAFOYSCZTZCN5OREHX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:34:54.291478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2273f817f5380aec48599e44deba243de7fa7a8ad5e384c6aae9d062551955f0

Aliases

arxiv: 1507.08497 · arxiv_version: 1507.08497v2 · doi: 10.48550/arxiv.1507.08497 · pith_short_12: EJZ7QF7VHAFO · pith_short_16: EJZ7QF7VHAFOYSCZ · pith_short_8: EJZ7QF7V

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/EJZ7QF7VHAFOYSCZTZCN5OREHX \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 2273f817f5380aec48599e44deba243de7fa7a8ad5e384c6aae9d062551955f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "807cdf2c9faa26a91d68afe83da6f49ec1f573a5d2ab1bc47363199487aed09b",
    "cross_cats_sorted": [
      "cs.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-07-28T21:33:26Z",
    "title_canon_sha256": "049e1e0594cd8d99f3eaee4da2810e0cac96fe367f5354a022703cc1858f3a2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.08497",
    "kind": "arxiv",
    "version": 2
  }
}